National Instruments NI PXIe-6672 - Manual

© National Instruments Corporation vii NI PXIe-6672 User Manual About This Manual Thank you for purchasing the National Instruments NI PXIe-6672 Timing and Synchronization Module. The NI PXIe-6672 enables you to pass PXI timing and trigger signals between two or more PXI Express chassis. The NI PXIe...

About This Manual NI PXIe-6672 User Manual viii ni.com monospace Text in this font denotes text or characters that you should enter from the keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs...

© National Instruments Corporation 1-1 NI PXIe-6672 User Manual 1 Introduction The NI PXIe-6672 timing and triggering module enables you to pass PXI timing signals between two or more PXI Express chassis. The NI PXIe-6672 module generates and routes clock signals between devices in multiple chassis,...

Chapter 1 Introduction NI PXIe-6672 User Manual 1-2 ni.com Unpacking The NI PXIe-6672 is shipped in an antistatic package to prevent electrostatic damage to the module. Electrostatic discharge (ESD) can damage several components on the module. Caution Never touch the exposed pins of connectors. To a...

© National Instruments Corporation 2-1 NI PXIe-6672 User Manual 2 Installing and Configuring This chapter describes how to install the NI PXIe-6672 hardware and software and how to configure the device. Installing the Software Refer to the readme.htm file that accompanies the NI-Sync CD for software...

Chapter 2 Installing and Configuring NI PXIe-6672 User Manual 2-2 ni.com Note The slot number printed on the glyph may vary from chassis to chassis. The circle inside of the square indicates that the slot may also be used as a PXI Express peripheral slot. 3. Remove the filler panel for the PXI slot ...

Chapter 3 Hardware Overview NI PXIe-6672 User Manual 3-4 ni.com Access LED The Access LED indicates the communication status of the NI PXIe-6672. Refer to Figure 3-2 for the location of the Access LED. Table 3-1 summarizes what the Access LED colors represent. Active LED The Active LED can indicate ...

Chapter 3 Hardware Overview © National Instruments Corporation 3-5 NI PXIe-6672 User Manual Connectors This section describes the connectors on the front panel of the NI PXIe-6672. • CLKIN —Clock Input. This connector supplies the module with a clock that can be programmatically routed to the onboar...

Chapter 3 Hardware Overview NI PXIe-6672 User Manual 3-6 ni.com Table 3-3 outlines the function and direction of the signals discussed in detail in the remainder of this chapter. Table 3-3. Signal Descriptions Signal Name Direction Description PXI_CLK10_IN Out This is a signal that can replace the n...

Chapter 3 Hardware Overview © National Instruments Corporation 3-7 NI PXIe-6672 User Manual The remainder of this chapter describes how these signals are used, acquired, and generated by the NI PXIe-6672 hardware, and explains how you can route the signals between various locations to synchronize mu...

Chapter 3 Hardware Overview © National Instruments Corporation 3-9 NI PXIe-6672 User Manual clock; this feature must be explicitly enabled in software. The TCXO output also can be routed out to the CLKOUT connector. In addition to replacing the native backplane clock directly, the TCXO can phase loc...

Chapter 3 Hardware Overview © National Instruments Corporation 3-11 NI PXIe-6672 User Manual Figure 3-4 provides a more detailed view of the Selection Circuitry referenced in Figure 3-3. Figure 3-4. Signal Selection Circuitry Diagram Determining Sources and Destinations All signal routing operations...

Chapter 3 Hardware Overview NI PXIe-6672 User Manual 3-12 ni.com Table 3-4 summarizes the sources and destinations of the NI PXIe-6672. The destinations are listed in the horizontal heading row, and the sources are listed in the column at the far left. A ✓ in a cell indicates that the source and des...

Chapter 3 Hardware Overview © National Instruments Corporation 3-13 NI PXIe-6672 User Manual PFI connectors to the voltage output of software-programmable DACs. The thresholds for the PFI lines are individually programmable, which is useful if you are importing signals from multiple sources with dif...

Chapter 3 Hardware Overview NI PXIe-6672 User Manual 3-14 ni.com Refer to the Choosing the Type of Routing section for more information on the synchronization clock. Note The PFI synchronization clock is the same for all routing operations in which PFI <0..5> is defined as the output, although...

Chapter 3 Hardware Overview © National Instruments Corporation 3-15 NI PXIe-6672 User Manual Refer to the Choosing the Type of Routing section for more information about the synchronization clock. Note The PXI_Trig/PXI_Star synchronization clock is the same for all routing operations in which PXI_TR...

Chapter 3 Hardware Overview NI PXIe-6672 User Manual 3-16 ni.com Asynchronous Routing Asynchronous routing is the most straightforward method of routing signals. Any asynchronous route can be defined in terms of two signal locations: a source and a destination. A digital pulse or train comes in on t...

Chapter 3 Hardware Overview NI PXIe-6672 User Manual 3-18 ni.com the second clock cycle. However, by synchronizing the signal, you can eliminate the ambiguity, and the signal will always be seen in the second clock cycle. One useful feature of synchronous routing is that the signal can be propagated...

© National Instruments Corporation 4-1 NI PXIe-6672 User Manual 4 Calibration This chapter discusses the calibration of the NI PXIe-6672. Calibration consists of verifying the measurement accuracy of a device and correcting for any measurement error. The NI PXIe-6672 is factory calibrated before shi...

Chapter 4 Calibration NI PXIe-6672 User Manual 4-2 ni.com DDS Initial Phase The phase of the DDS output is adjusted using this constant so that the DDS outputs from multiple NI PXIe-6672 modules are aligned. Additional Information Refer to ni.com/calibration for additional information on NI calibrat...

© National Instruments Corporation A-1 NI PXIe-6672 User Manual A Specifications CLKIN Characteristics CLKIN fundamental frequency range 1 .................................... 1 MHz to 105 MHz, sine or square wave Input impedance ..................................... 50 Ω , nominal Input coupling .....

Appendix A Specifications NI PXIe-6672 User Manual A-2 ni.com Jitter added to CLKIN Without PLL ....................................0.5 ps rms , 10 Hz to 100 kHz, typical With PLL .........................................0.6 ps rms , 10 Hz to 100 kHz, typical Duty cycle distortion of CLKIN to PXI_CL...

Appendix A Specifications © National Instruments Corporation A-3 NI PXIe-6672 User Manual Square wave rise/fall time (10 to 90%) Low drive ........................................ 0.5 ns min, 2.5 ns max High drive ....................................... 0.5 ns min, 2.5 ns max PFI <0..5> Input ...

Appendix A Specifications NI PXIe-6672 User Manual A-4 ni.com Output Characteristics Frequency range .....................................DC to 105 MHz Output impedance ...................................50 Ω , nominal Output coupling ......................................DC Voltage level .............

Appendix A Specifications © National Instruments Corporation A-5 NI PXIe-6672 User Manual PXI Trigger Characteristics PXI_TRIG <0..7> to PXI_TRIG <0..7> output skewat NI PXIe-6672 backplane connector ... 5 ns, typical Asynchronous delay, t pd PXI_TRIG <0..7> to PFI <0..5> out...

Appendix A Specifications NI PXIe-6672 User Manual A-6 ni.com Recommended maximum cable length 1 PFI/CLKOUT, DC to 10 MHz ........200 m CLKOUT High Gain, 105 MHz ......80 m 2 PFI/CLKOUT Low Gain,105 MHz ..........................................30 m 3 Weight ............................................

Appendix A Specifications © National Instruments Corporation A-7 NI PXIe-6672 User Manual Storage Environment Ambient temperature range.................... – 40 to 71 °C (Tested in accordance with IEC-60068-2-1 and IEC-60068-2-2. Meets MIL-PRF-28800F Class 3 low temperature limit.) Relative humidity...

Appendix A Specifications NI PXIe-6672 User Manual A-8 ni.com Electromagnetic Compatibility This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use: • EN 61326 EMC requirements; Minimum Immunity • EN 55...

Appendix A Specifications © National Instruments Corporation A-9 NI PXIe-6672 User Manual Waste Electrical and Electronic Equipment (WEEE) EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers and National...

Appendix B Technical Support and Professional Services NI PXIe-6672 User Manual B-2 ni.com • Declaration of Conformity (DoC) —A DoC is our claim of compliance with the Council of the European Communities using the manufacturer’s declaration of conformity. This system affords the user protection for ...

© National Instruments Corporation G-1 NI PXIe-6672 User Manual Glossary Symbol Prefix Value p pico 10 – 12 n nano 10 – 9 µ micro 10 – 6 m milli 10 – 3 k kilo 10 3 M mega 10 6 Symbols % percent ± plus or minus + positive of, or plus – negative of, or minus / per ° degree Ω ohm A accumulator A part w...

© National Instruments Corporation I-1 NI PXIe-6672 User Manual Index A Access LED color explanation (table), 3-4overview, 3-4 Active LED color explanation (table), 3-4overview, 3-4 asynchronous routing overview, 3-16sources and destinations, 3-16timing diagram, 3-16 B block diagram NI PXIe-6672 fun...